2. SKLZ Pro Mini Basketball Hoop System. Adjustable Height 3.5 ft. -7 ft. and 7″ Mini Ball.(Click Link to Check Price on Amazon)Editor’s Rating : 9.9 out of 10COMPLETE MINI-BASKETBALL SYSTEM. The SKLZ Pro Mini Basketball Hoop System includes a height-adjustable backboard, rim, pole, and base with wheels to keep it extra portable. Keep it high at 7 ft. for courtside play, or lower it to 3.5 ft. for junior or poolside play.ULTRA-DURABLE AND PRO-GRADE LOOK. The 33″ x 23″ backboard is made of shatterproof clear polycarbonate, tough enough for the most competitive games. The weighted mobile base (31.6 x 20 x 6.3″) fills with sand or water for stability as you practice your shots.